Clamp for l



(No Model.)

H. J. MEUNIER. CLAMP FOR LAMP BRACKETS, &c.

No. 353,956. Patented Dec. 7, 1886.

"I J v muz 6D liTmv U ITED STATES PATENT OFFICE.

HERMAN J. MEUNIER, OF MILWAUKEE, \VISCONSIN.

CLAMP FOR LAMP-BRACKETS, &C.

SPECIFICATION forming part of Letters Patent No. 353,956, dated December 7, 1886.

Application filed February 6, 1886. Serial No. 190,985. (No model.)

To aZZ whom it may concern:

Be it known that I, HERMAN J. MEUNIER, ofMilwaukee, in the county of Mi1w'aukee,and in the State of Wisconsin, have invented certain new and useful Improvements in Clamps for La mpBrackets, &c.; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to clamps for adjustable lamp-brackets, music-racks, book-supports,&c.; and it consists in certain peculiarities of construction, as will be hereinafter de scribed with reference to the accompanying drawings, in which- Figure 1 represents a side elevation of my device in operative position and supporting an adjustable lampbracket; Fig. 2, a detail view of the adjustable lever-arm, and Fig. 3 a similar view of the fulcrum and means for retaining thelever-arm in its adjusted position.

Referring by letter to the drawings, A represents the stationary portion of my clamp, having a horizontal base, a, and vertically-depending arm I). Formed integral with and extending in an upward direction from the horizontal base a is ahollow standard, B, that is adapted to receive the vertical pintle-c of a lamp-bracket, C; and this bracket may consist either of a single arm or series of arms pivotally united, as shown at d, so as to be variously adjusted, the lamp D being suitably united to the outermost arm, E, as by pintle d.

Though I have described a lamp-bracket in connection with my clamp, it is obvious that said clamp may be employed to support other brackets or appurtenancessuch,for example,

as the vertical rod of a portable music-rack,-

student-lamp,or other fixture-and in some instances I may omit the hollow standard B and utilize the remaining portion of the clamp for ordinary purposes of attachment.

As shown by dotted lines, Fig. 1, a set-screw may be employed to rigidly secure the pintle c, or its equivalent, when in position with relation to the hollow standard B, should such construction be found desirable.

The vertically-depending arm I; of the stationary portion A of my clamp is bifurcated, as shown at e. to receive a lever-arm, F, and is provided with bearings f for the trunnions g of said lever-arm. The said depending arm I) of the part A is also provided with a horiagainst the other side of the support.

zontal lug, it, that forms a bearing for an adjusting screw, G, and the lever-arm F has its outer and inner ends laterally extended to form bearing-faces i k.

\Vhen my clamp is in position upon a tabletop or other support, H, the horizontal base a of the stationary part A rests against one side of such support, and by operating the screw G down against the bearing-facet of the leverarm F the outer end of said lever-arm is depressed,thus elevating the inner end and bringing the bearing-face k of said lever-arm tightly To remove the clamp the action of the screw G is reversed,wheu the lever-arm F will, by its own gravity,fall away from the side of the support against which it may have been in contact. The lug h on the vertically-depending arm I; of the stationary portion A of the clamp not only serves as a bearing for the screw G, but

also acts to limit the downward movement of I the lever-arm F when removing the clamp.

By the construction above described I pro vide a simple, easily manufactured clamp adapted to various uses, and one which can readily be secured to or removed from any suitable support.

I am aware that a clamp consisting of a vertical part having hinged thereto a lever-arm, and the latter provided with a bearing in which operates a screw designed to impinge against said vertical part, has been employed. I am also aware of a clamp that has an adjustable arm provided with a bearing to engage a serrated beam, and a set-screw designed to impinge against said beam; but I do not wish to be understood as broadly claiming such constructiou.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. Aclamp consisting of a stationary portion adapted to support a lamp-bracket or analogous fixture, and having a vertically-depending arm provided with a horizontal outwardlyextended lug, a lever fulcrumed to the depending arm, and an adjusting-screw operative in the lug upon said arm and designed to impinge against the lever, as set forth.

2. A clamp consisting ofastationary portion adapted to support a lamp-bracket or analogous fixture, and having a vertically-dependin said bearings and its'outer and inner ends laterally extended to form bearing-faces, and 15 a an adj ustiug-screw operative in the lug on said stationary part to impinge against the outer end of the lever, as set forth.

In testimony that I claim the foregoing I have hereunto set my hand, at Milwaukee, in 20 the county of Milwaukee and State of Wiscousin, in the presence of two witnesses.

HERMAN J. MEUNIER.

Witnesses:

H. G. UNDERwooD, N. E. OLIPHANT. 

